Generating microbubbles in a co-flowing microfluidic device

  • Wang K
  • Xie L
  • Lu Y
 et al. 
  • 15

    Readers

    Mendeley users who have this article in their library.
  • 9

    Citations

    Citations of this article.

Abstract

This paper introduces an experimental study on the microbubble generation mechanism in a co-flowing microfluidic device. Using propane, butane and air as the dispersed phases and different SDS-PEG solutions as the continuous phases, two kinds of bubble generating phenomena, named "single-bubble generation" flow and "dual-bubble generation" flow, were observed in experiment and uniform bubbles with average diameters ranging from 391. μm to 713. μm and polydispersity less than 2.9% were successfully prepared. The pressure fluctuation of gas phase is carefully analyzed with the Young-Laplace equation and the bubble generation mechanism is summarized from the dynamic movement of gas-liquid interface. The main factors impacting the bubble size variation are illustrated for both the organic and inorganic gases. A universal correlation is established to predict the average bubble diameters. © 2013 Elsevier Ltd.

Author-supplied keywords

  • Co-flowing microchannel
  • Gas-liquid interface
  • Generation mechanism
  • Microbubble
  • Organic and inorganic gases
  • Pressure fluctuation

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text

Authors

  • Kai Wang

  • Lisi Xie

  • Yangcheng Lu

  • Guangsheng Luo

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free